Complete the sentences

I can speak English. (+)

I can't speak French. (−)

1. He [can|can't]
   cook. (−)
2. Emma [can|can't] run fast. (+)
3. Fish [can|can't] walk. (−)
4. He [can|can't] jump on one leg. (−)
5. Justin's grandmother [can|can't] dance hip-hop. (+)
6. Tigers and elephants [can|can't] swim. (+)